2012133331 has 4 divisors (see below), whose sum is σ = 2166912832. Its totient is φ = 1857353832.

The previous prime is 2012133313. The next prime is 2012133349. The reversal of 2012133331 is 1333312102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1333312102 = 2 ⋅666656051.

It is an interprime number because it is at equal distance from previous prime (2012133313) and next prime (2012133349).

It is a cyclic number.

It is not a de Polignac number, because 2012133331 - 2¹³ = 2012125139 is a prime.

It is a super-2 number, since 2×2012133331² = 8097361083442311122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012133299 and 2012133308.

It is not an unprimeable number, because it can be changed into a prime (2012133301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77389731 + ... + 77389756.

It is an arithmetic number, because the mean of its divisors is an integer number (541728208).

Almost surely, 2^2012133331 is an apocalyptic number.

2012133331 is a deficient number, since it is larger than the sum of its proper divisors (154779501).

2012133331 is a wasteful number, since it uses less digits than its factorization.

2012133331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154779500.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2012133331 is about 44856.8091932540. The cubic root of 2012133331 is about 1262.4637547481.

Adding to 2012133331 its reverse (1333312102), we get a palindrome (3345445433).

The spelling of 2012133331 in words is "two billion, twelve million, one hundred thirty-three thousand, three hundred thirty-one".